// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package com.cloud.ha;
import java.util.List;
import javax.inject.Inject;
import org.apache.log4j.Logger;
import org.springframework.stereotype.Component;
import org.apache.cloudstack.storage.datastore.db.PrimaryDataStoreDao;
import com.cloud.host.Host;
import com.cloud.storage.VolumeVO;
import com.cloud.storage.dao.VolumeDao;
import com.cloud.utils.component.AdapterBase;
import com.cloud.vm.VirtualMachine;
@Component
public class RecreatableFencer extends AdapterBase implements FenceBuilder {
private static final Logger s_logger = Logger.getLogger(RecreatableFencer.class);
@Inject
VolumeDao _volsDao;
@Inject
PrimaryDataStoreDao _poolDao;
public RecreatableFencer() {
super();
}
@Override
public Boolean fenceOff(VirtualMachine vm, Host host) {
VirtualMachine.Type type = vm.getType();
if (type != VirtualMachine.Type.ConsoleProxy && type != VirtualMachine.Type.DomainRouter && type != VirtualMachine.Type.SecondaryStorageVm) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Don't know how to fence off " + type);
}
return null;
}
List<VolumeVO> vols = _volsDao.findByInstance(vm.getId());
for (VolumeVO vol : vols) {
if (!vol.isRecreatable()) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Unable to fence off volumes that are not recreatable: " + vol);
}
return null;
}
if (vol.getPoolType().isShared()) {
if (s_logger.isDebugEnabled()) {
s_logger.debug("Unable to fence off volumes that are shared: " + vol);
}
return null;
}
}
return true;
}
}